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Kryger [21]
3 years ago
7

Given A = (3, -2 ) and B = (1, - 1) find A + B PLS HELP LOL

Mathematics
1 answer:
UNO [17]3 years ago
3 0
White as system of equations:
a=(3,-2) b=(1-1)
{a=1-1
{(3-2)b=1-1
Solve the equation for a:
{a=0
{(3-2)b=1-1
Solve for B :
a=0
b=0
The possible solution to the system is the ordered pair ( a , b )
Solution:
( a , b )= ( 0 , 0 )
There you have your answer :)
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Please help Need help
Anettt [7]
This problem can be readily solved if we are familiar with the point-slope form of straight lines:
y-y0=m(x-x0) ...................................(1)
where 
m=slope of line
(x0,y0) is a point through which the line passes.

We know that the line passes through A(3,-6), B(1,2)

All options have a slope of -4, so that should not be a problem.  In fact, if we check the slope=(yb-ya)/(xb-xa), we do find that the slope m=-4.

So we can check which line passes through which point:

a. y+6=-4(x-3)
Rearrange to the form of equation (1) above,
y-(-6)=-4(x-3)  means that line passes through A(3,-6) => ok

b. y-1=-4(x-2) means line passes through (2,1), which is neither A nor B
   ****** this equation is not the line passing through A & B *****

c. y=-4x+6  subtract 2 from both sides (to make the y-coordinate 2)
   y-2 = -4x+4, rearrange
   y-2 = -4(x-1)  
   which means that it passes through B(1,2), so ok

d. y-2=-4(x-1)
   this is the same as the previous equation, so it passes through B(1,2), 
   this equation is ok.

Answer: the equation y-1=-4(x-2) does NOT pass through both A and B.
   
8 0
3 years ago
Determine wheter the graph represents a function.​
Vesna [10]

Answer:

yes

the domain is greater than or equal to 0 and less than or equal to 4

the range is greater than or equal to 2 and less than or equal to 4

Step-by-step explanation:

7 0
3 years ago
Given the equation: ( x + 3)2 + ( y - 4)2 = 25
Roman55 [17]

Answer:

See below

Step-by-step explanation:

Center:   (-3, 4)

radius = r = \sqrt{25} = 5

diameter = 2r = 10

3 0
3 years ago
Read 2 more answers
Help please. Just one last question!!
diamong [38]
The answer is D z= 1 orz =4
3 0
3 years ago
Read 2 more answers
Find the first four terms and the tenth 12-n
Ad libitum [116K]

Answer:

Q1: 7, 10, 13, 16           10th Term = 34

Q2: -1, 3, 7, 11              10th Term = 35

Q3: 11, 10, 9, 8             10th Term = 2

Q4: 3, 1, -1, -3               10th Term = -15

Step-by-step explanation:

I don't know  If this is the answer you wanted but please tell me If I'm right or wrong.

3 0
3 years ago
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